Embryonic disc
Embryonic Disc
The Embryonic Disc (pronounced: em-bree-on-ik disk), also known as the Embryonic Plate, is a critical structure in early embryonic development.
Etymology
The term "Embryonic Disc" is derived from the Greek words "embryon" (meaning young one) and "diskos" (meaning a circular object or plate).
Definition
The Embryonic Disc is a circular, flattened structure of cells within the Blastocyst that gives rise to the definitive structures of the Embryo. It forms during the second week of embryonic development and is composed of three layers: the Ectoderm, Mesoderm, and Endoderm.
Related Terms
- Blastocyst: An early stage in the development of an embryo, consisting of a hollow ball of cells.
- Ectoderm: The outermost layer of cells or tissue of an embryo in early development.
- Mesoderm: The middle layer of an embryo in early development, between the endoderm and ectoderm.
- Endoderm: The innermost layer of cells or tissue of an embryo in early development.
See Also
External links
- Medical encyclopedia article on Embryonic disc
- Wikipedia's article - Embryonic disc
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